According to Lewis Spence in An Encyclopaedia of Occultism,
the Oupnekhat or Oupnekhata (Book of the Secret) is a work written
in Persian providing the following instructions for the production
To produce the wise Maschqgui (vision), we must sit on a
four-cornered base, namely the heels, and then close the gates
of the body. The ears by the thumbs; the eyes by the forefingers;
the nose by the middle; the lips by the four other fingers.
The lamp within the body will then be preserved from wind and
movement, and the whole body will be full of light. Like the tortoise,
man must withdraw every sense within himself; the heart
must be guarded, and then Brahma will enter into him, like fire
and lightning. In the great fire in the cavity of the heart a small
flame will be lit up, and in its center is Atma (the soul); and he
who destroys all worldly desires and wisdom will be like a hawk
which has broken through the meshes of the net, and will have
become one with the great being. Thus will he become Brahma-Atma
(divine spirit), and will perceive by a light that far exceeds
that of the sun. Who, therefore, enters this path by
Brahma must deny the world and its pleasures; must only cover
his nakedness, and staff in hand collect enough, but no more,
alms to maintain life. The lesser ones only do this; the greater
throw aside pitcher and staff, and do not even read the Oupnekhata.
This book is possibly a revision of one of the Hindu Upanishads.
Oupnekhata is probably from a nineteenth-century German
translation titled Das Oupnekhat; die aus den Veden zusammengefasste
Lebre von dem Brahm (Dresden, 1882), derived from
an earlier Latin edition of 1801.
There is no single Upanishad Book of Secrets. All the Upanishads
contain the esoteric wisdom of Hindu metaphysics (derived
from the Vedas.) Comparable forms of meditation are also
found in various Hindu yoga treatises and in the BhagavadGita,
a Hindu scripture derived from the Mahabharata, a religious